:root {
  --bg:#05080e; --bg2:#09111d; --panel:rgba(13,20,33,.82); --panel2:rgba(19,29,46,.72);
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.14);
  --text:#f7f9fd; --muted:#92a0b4; --accent:#7ef5d3; --accent2:#7c8cff; --accent3:#b777ff;
  --warning:#ffd27c; --danger:#ff7d8d; --shadow:0 22px 80px rgba(0,0,0,.42);
  --r-xl:30px; --r-lg:22px; --r-md:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);
background:
radial-gradient(900px 520px at 8% -5%,rgba(126,245,211,.12),transparent 62%),
radial-gradient(840px 480px at 94% 8%,rgba(124,140,255,.14),transparent 60%),
linear-gradient(180deg,#05080e 0%,#09101b 42%,#05080e 100%);
min-height:100vh;overflow-x:hidden}
body::after{content:"";position:fixed;inset:0;pointer-events:none;opacity:.22;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(#000,transparent 82%)}
button,textarea{font:inherit}
button{cursor:pointer}
button:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.app{max-width:1180px;margin:0 auto;padding:18px 18px 120px}
.glass{background:linear-gradient(180deg,rgba(17,27,44,.80),rgba(9,15,27,.78));border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.topbar{position:sticky;top:12px;z-index:30;height:68px;padding:12px 14px 12px 18px;border-radius:24px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(126,245,211,.22),rgba(124,140,255,.2));border:1px solid rgba(126,245,211,.2);box-shadow:inset 0 1px rgba(255,255,255,.12)}
.logo svg{width:22px;height:22px}
.brand-title{font-weight:850;letter-spacing:-.02em}
.eyebrow{font-size:10px;font-weight:850;letter-spacing:.18em;color:var(--accent)}
.top-actions{display:flex;gap:8px}
.icon-btn{width:42px;height:42px;border-radius:14px;border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.045);display:grid;place-items:center}
.icon-btn:hover{background:rgba(255,255,255,.075);border-color:var(--line2)}
.hero{position:relative;overflow:hidden;margin-top:18px;padding:28px;border-radius:34px;display:grid;grid-template-columns:1.3fr .7fr;gap:22px;align-items:end;background:
linear-gradient(135deg,rgba(124,140,255,.16),rgba(126,245,211,.07) 48%,rgba(183,119,255,.08)),
rgba(10,16,28,.76);border:1px solid var(--line);box-shadow:var(--shadow)}
.hero::before{content:"";position:absolute;width:360px;height:360px;right:-120px;top:-160px;border-radius:50%;background:radial-gradient(circle,rgba(126,245,211,.22),transparent 66%);filter:blur(4px)}
.profile{display:flex;align-items:center;gap:18px;position:relative;z-index:1}
.avatar-wrap{padding:3px;border-radius:24px;background:linear-gradient(135deg,var(--accent),var(--accent2),var(--accent3));box-shadow:0 10px 28px rgba(126,245,211,.14)}
.avatar{width:76px;height:76px;border-radius:21px;display:grid;place-items:center;background:#0a1220;font-weight:900;font-size:22px}
.hero h1{font-size:clamp(28px,5vw,48px);line-height:1.04;margin:3px 0 9px;letter-spacing:-.045em}
.sub{color:var(--muted);font-size:14px}
.hero-pills{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;position:relative;z-index:1}
.pill{padding:10px 13px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.045);color:#dce4ef;font-size:12px;font-weight:750}
.pill.hot{background:rgba(126,245,211,.08);color:var(--accent);border-color:rgba(126,245,211,.18)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}
.stat{border:1px solid var(--line);background:rgba(255,255,255,.035);border-radius:20px;padding:16px;display:flex;align-items:center;gap:12px}
.stat-icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:rgba(126,245,211,.07);border:1px solid rgba(126,245,211,.12)}
.stat-icon svg{width:20px;height:20px}
.stat small{display:block;color:var(--muted);margin-bottom:3px}
.stat strong{font-size:20px}
.section{margin-top:30px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:14px}
.section-head h2{font-size:22px;margin:3px 0 0;letter-spacing:-.02em}
.status{font-size:11px;color:var(--accent);border:1px solid rgba(126,245,211,.16);background:rgba(126,245,211,.06);padding:7px 10px;border-radius:999px}
.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.tab{position:relative;text-align:left;padding:18px;border-radius:22px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:white;overflow:hidden;transition:.2s transform,.2s background,.2s border-color}
.tab:hover{transform:translateY(-2px);border-color:var(--line2)}
.tab.active{background:linear-gradient(135deg,rgba(126,245,211,.12),rgba(124,140,255,.10));border-color:rgba(126,245,211,.28);box-shadow:0 16px 40px rgba(0,0,0,.16)}
.tab.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.tab strong{display:block;font-size:17px;margin-bottom:4px} .tab span{color:var(--muted);font-size:12px}
.summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px;border-radius:24px}
.summary h3{margin:4px 0 5px;font-size:24px;letter-spacing:-.03em}
.primary,.secondary{border-radius:15px;padding:12px 16px;font-weight:850;border:1px solid transparent}
.primary{color:#06100d;background:linear-gradient(135deg,var(--accent),#b8ffe9);box-shadow:0 10px 34px rgba(126,245,211,.18)}
.primary:hover{filter:brightness(1.05)} .secondary{color:var(--text);background:rgba(255,255,255,.055);border-color:var(--line)}
.exercises{display:grid;gap:11px}
.exercise{display:grid;grid-template-columns:118px 1fr auto;gap:16px;align-items:center;padding:13px;border-radius:22px;border:1px solid var(--line);background:rgba(255,255,255,.034);transition:.2s;overflow:hidden}
.exercise:hover{transform:translateY(-2px);background:rgba(255,255,255,.052);border-color:var(--line2)}
.thumb{height:88px;border-radius:17px;overflow:hidden;background:linear-gradient(135deg,rgba(126,245,211,.10),rgba(124,140,255,.12)),#0c1422;position:relative}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb.placeholder{display:grid;place-items:center;color:#6f7d91;font-size:10px;font-weight:900;letter-spacing:.14em}
.photo-count{position:absolute;right:7px;bottom:7px;padding:4px 7px;border-radius:999px;background:rgba(5,8,14,.72);backdrop-filter:blur(10px);font-size:10px;color:white;border:1px solid rgba(255,255,255,.1)}
.exercise h3{font-size:17px;margin:0 0 8px;letter-spacing:-.01em}
.meta{display:flex;flex-wrap:wrap;gap:7px} .meta span{font-size:11px;color:#aab5c5;padding:6px 8px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.04);border-radius:999px}
.actions{display:flex;gap:7px} .round{width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.045);color:white;display:grid;place-items:center}
.round svg{width:18px;height:18px} .round.done{color:var(--accent);background:rgba(126,245,211,.10);border-color:rgba(126,245,211,.22)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.panel{padding:20px;border-radius:24px}
.panel-head{display:flex;align-items:center;justify-content:space-between}
.panel-head h2{margin:3px 0 0;font-size:21px}
.timer-display{font-size:62px;font-weight:900;text-align:center;letter-spacing:-.05em;padding:16px 0}
.timer-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.timer-presets button{padding:10px;border-radius:13px;color:white;border:1px solid var(--line);background:rgba(255,255,255,.045);font-weight:750}
.timer-presets button.active{color:var(--accent);border-color:rgba(126,245,211,.25);background:rgba(126,245,211,.08)}
.timer-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}
textarea{width:100%;min-height:142px;resize:vertical;border-radius:17px;border:1px solid var(--line);background:rgba(255,255,255,.035);color:white;padding:14px;outline:none;margin-top:14px}
textarea:focus{border-color:rgba(126,245,211,.28)}
.note-foot{display:flex;align-items:center;justify-content:space-between;margin-top:10px} .saved{font-size:11px;color:var(--muted)}
.history{display:grid;gap:9px}
.history-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.history-item small,.empty{color:var(--muted)} .empty{text-align:center;padding:24px;border-radius:20px;border:1px dashed var(--line)}
.safety{display:flex;gap:14px;align-items:flex-start;padding:20px;border-radius:24px;border:1px solid rgba(255,210,124,.16);background:rgba(255,210,124,.045)}
.safety h3{margin:0 0 6px} .safety p{margin:0;color:#c9d1dd;line-height:1.55}
.bottom{position:fixed;left:50%;bottom:14px;transform:translateX(-50%);z-index:40;width:min(94%,720px);padding:8px;border-radius:22px;display:grid;grid-template-columns:repeat(4,1fr)}
.nav{border:0;background:transparent;color:var(--muted);padding:8px 5px;border-radius:14px} .nav svg{width:19px;height:19px;display:block;margin:0 auto 3px} .nav span{font-size:10px}
.nav.active{color:var(--accent);background:rgba(126,245,211,.065)}

/* Modal — explicit [hidden] rule fixes the close-button bug */
.modal-backdrop[hidden]{display:none!important}
.modal-backdrop{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:18px;background:rgba(2,5,10,.78);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.modal{position:relative;width:min(760px,100%);max-height:min(92vh,860px);overflow:auto;border-radius:30px;padding:18px;background:linear-gradient(180deg,rgba(15,24,40,.98),rgba(7,12,22,.98));border:1px solid rgba(255,255,255,.12);box-shadow:0 34px 120px rgba(0,0,0,.66)}
.modal-close{position:sticky;top:0;float:right;z-index:10;width:44px;height:44px;border-radius:14px;border:1px solid rgba(255,255,255,.12);background:rgba(7,12,22,.76);backdrop-filter:blur(10px);color:white;display:grid;place-items:center}
.modal-close:hover{background:rgba(255,255,255,.09)}
.gallery{position:relative;height:330px;border-radius:22px;overflow:hidden;background:#0a1322;margin-bottom:18px;clear:both}
.gallery img{width:100%;height:100%;object-fit:cover;display:block}
.gallery-placeholder{height:100%;display:grid;place-items:center;color:#67758b;font-size:11px;font-weight:900;letter-spacing:.14em;background:linear-gradient(135deg,rgba(126,245,211,.08),rgba(124,140,255,.1))}
.gallery-nav{position:absolute;inset:auto 10px 10px 10px;display:flex;justify-content:space-between;align-items:center}
.gallery-btn{width:42px;height:42px;border-radius:14px;border:1px solid rgba(255,255,255,.14);background:rgba(5,9,16,.68);color:white;backdrop-filter:blur(10px)}
.gallery-dots{display:flex;gap:6px;padding:7px 9px;border-radius:999px;background:rgba(5,9,16,.58);backdrop-filter:blur(10px)}
.dot{width:7px;height:7px;border-radius:99px;background:rgba(255,255,255,.35)} .dot.active{background:var(--accent);width:20px}
.modal-body{padding:2px 4px 6px} .modal h2{font-size:28px;line-height:1.05;margin:5px 0 16px;letter-spacing:-.035em}
.detail-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin-bottom:12px}
.detail{padding:12px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.035)} .detail small{display:block;color:var(--muted);margin-bottom:5px} .detail strong{font-size:14px}
.how{padding:15px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.028)} .how h4{margin:0 0 7px} .how p{margin:0;color:#d0d8e4;line-height:1.6}
.modal::-webkit-scrollbar{width:8px} .modal::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:999px} .modal::-webkit-scrollbar-track{background:transparent}

@media (max-width:780px){
 .app{padding:12px 12px 110px} .hero{grid-template-columns:1fr;padding:22px} .hero-pills{justify-content:flex-start} .stats{grid-template-columns:1fr}
 .tabs{grid-template-columns:1fr} .grid2{grid-template-columns:1fr} .exercise{grid-template-columns:90px 1fr} .actions{grid-column:1/-1;justify-content:flex-end}
 .detail-grid{grid-template-columns:1fr 1fr} .gallery{height:270px} .hero h1{font-size:30px} .timer-display{font-size:52px}
}
@media (max-width:480px){
 .profile{align-items:flex-start} .avatar{width:62px;height:62px;border-radius:18px} .avatar-wrap{border-radius:21px}
 .exercise{grid-template-columns:76px 1fr;gap:11px} .thumb{height:74px} .meta span:nth-child(n+4){display:none}
 .gallery{height:240px} .modal{padding:12px;border-radius:24px} .detail-grid{gap:7px} .detail{padding:10px}
}

/* ===== PREMIUM V2 ===== */
:root{
  --gold:#f4d78e;
  --cyan:#8ee7ff;
}
.hero{
  box-shadow:0 30px 100px rgba(0,0,0,.5), inset 0 1px rgba(255,255,255,.04);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,rgba(255,255,255,.035),transparent 24%,transparent 70%,rgba(126,245,211,.035));
}
.exercise{
  position:relative;
  cursor:pointer;
  background:
    linear-gradient(110deg,rgba(255,255,255,.045),rgba(255,255,255,.018)),
    rgba(8,13,23,.72);
  box-shadow:0 14px 40px rgba(0,0,0,.18);
}
.exercise::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;border-radius:99px;
  background:linear-gradient(var(--accent),var(--accent2));opacity:.0;transition:.2s;
}
.exercise:hover::before{opacity:1}
.exercise:hover{box-shadow:0 18px 52px rgba(0,0,0,.28)}
.thumb{box-shadow:inset 0 0 0 1px rgba(255,255,255,.04)}
.exercise-number{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:28px;height:28px;border-radius:10px;margin-right:8px;
  background:rgba(126,245,211,.08);color:var(--accent);
  font-size:12px;font-weight:900;border:1px solid rgba(126,245,211,.12)
}
.modal-backdrop{
  background:
    radial-gradient(circle at 50% 10%,rgba(124,140,255,.13),transparent 34%),
    rgba(1,4,9,.84);
}
.modal{
  width:min(980px,100%);
  max-height:92vh;
  padding:16px;
  border-radius:32px;
  background:
    linear-gradient(180deg,rgba(18,27,44,.99),rgba(6,10,18,.99));
  border:1px solid rgba(255,255,255,.13);
  box-shadow:0 45px 160px rgba(0,0,0,.76), inset 0 1px rgba(255,255,255,.04);
}
.modal-head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:8px 6px 16px;
}
.modal-title-wrap h2{margin:5px 0 0;font-size:30px;letter-spacing:-.04em}
.modal-close{
  position:static;float:none;flex:0 0 auto;
  width:46px;height:46px;border-radius:15px;
  background:rgba(255,255,255,.055);
}
.dual-gallery{
  display:grid;grid-template-columns:1fr 1fr;gap:12px;
}
.phase-card{
  position:relative;border-radius:22px;overflow:hidden;
  min-height:315px;background:#09111d;border:1px solid rgba(255,255,255,.08);
  box-shadow:0 16px 50px rgba(0,0,0,.22);
}
.phase-card img{width:100%;height:100%;min-height:315px;object-fit:cover;display:block}
.phase-card.placeholder{display:grid;place-items:center;color:#6e7c90}
.phase-label{
  position:absolute;left:12px;top:12px;z-index:2;
  display:flex;align-items:center;gap:8px;padding:8px 11px;border-radius:999px;
  background:rgba(4,8,14,.7);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.11);font-size:11px;font-weight:850;letter-spacing:.08em
}
.phase-label::before{
  content:"";width:8px;height:8px;border-radius:99px;background:var(--accent);
  box-shadow:0 0 16px rgba(126,245,211,.8)
}
.phase-card.exec .phase-label::before{background:var(--accent2);box-shadow:0 0 16px rgba(124,140,255,.8)}
.modal-content{padding:16px 4px 4px}
.detail-board{
  display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:10px;margin-top:14px
}
.detail-tile{
  padding:14px 15px;border-radius:18px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.025));
  border:1px solid rgba(255,255,255,.075);
}
.detail-tile small{
  display:block;color:var(--muted);font-size:10px;letter-spacing:.11em;font-weight:800;text-transform:uppercase;margin-bottom:7px
}
.detail-tile strong{font-size:14px;line-height:1.35}
.detail-tile.wide{grid-column:1/-1}
.how-premium{
  margin-top:10px;padding:17px 18px;border-radius:20px;
  border:1px solid rgba(126,245,211,.12);
  background:linear-gradient(135deg,rgba(126,245,211,.055),rgba(124,140,255,.035));
}
.how-premium small{display:block;color:var(--accent);font-size:10px;letter-spacing:.12em;font-weight:850;margin-bottom:8px}
.how-premium p{margin:0;color:#d8dfe9;line-height:1.65;font-size:14px}
.modal-hint{
  margin-top:12px;color:#718096;font-size:11px;text-align:center
}
@media(max-width:760px){
  .dual-gallery{grid-template-columns:1fr}
  .phase-card,.phase-card img{min-height:245px}
  .detail-board{grid-template-columns:1fr 1fr}
  .detail-tile.wide{grid-column:1/-1}
}
@media(max-width:460px){
  .modal{padding:10px;border-radius:24px}
  .modal-title-wrap h2{font-size:24px}
  .detail-board{grid-template-columns:1fr}
  .detail-tile.wide{grid-column:auto}
  .phase-card,.phase-card img{min-height:220px}
}


/* ===== PREMIUM V3 ===== */
.student-photo{overflow:hidden;padding:0;background:#0a1220}
.student-photo img{width:100%;height:100%;object-fit:cover;object-position:center;display:block;transform:none}
.avatar-wrap{
  position:relative;
  box-shadow:0 18px 45px rgba(126,245,211,.18),0 0 0 1px rgba(255,255,255,.06);
}
.avatar-wrap::after{
  content:"";position:absolute;right:-4px;bottom:-4px;width:18px;height:18px;border-radius:50%;
  background:var(--accent);border:4px solid #0a1220;box-shadow:0 0 18px rgba(126,245,211,.65)
}
.hero{
  background:
    radial-gradient(circle at 76% 22%,rgba(126,245,211,.12),transparent 28%),
    radial-gradient(circle at 18% 8%,rgba(124,140,255,.12),transparent 28%),
    linear-gradient(135deg,rgba(124,140,255,.15),rgba(126,245,211,.055) 50%,rgba(183,119,255,.07)),
    rgba(8,14,24,.78);
}
.topbar{
  box-shadow:0 16px 52px rgba(0,0,0,.32), inset 0 1px rgba(255,255,255,.035);
}
.tab{
  min-height:92px;
  display:flex;flex-direction:column;justify-content:center;
}
.tab strong{font-size:18px}
.summary{
  position:relative;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(126,245,211,.07),rgba(124,140,255,.045)),
    linear-gradient(180deg,rgba(17,27,44,.82),rgba(9,15,27,.8));
}
.summary::after{
  content:"";position:absolute;width:180px;height:180px;border-radius:50%;
  right:-80px;top:-95px;background:radial-gradient(circle,rgba(126,245,211,.14),transparent 70%);
}
.summary>*{position:relative;z-index:1}
.exercise .thumb img{transition:transform .35s ease,filter .35s ease}
.exercise:hover .thumb img{transform:scale(1.045);filter:brightness(1.05)}
.phase-card img{transition:transform .3s ease}
.phase-card:hover img{transform:scale(1.015)}
.detail-tile{
  box-shadow:inset 0 1px rgba(255,255,255,.025);
}
.how-premium{
  box-shadow:inset 0 1px rgba(255,255,255,.035);
}
@media(max-width:480px){
  .avatar{width:64px;height:64px}
}


/* ===== METRICS PAGE ===== */
.metrics-page{
  position:relative;
  margin-top:30px;
  padding:24px;
  border-radius:30px;
  overflow:hidden;
  background:
    radial-gradient(circle at 8% 0%,rgba(126,245,211,.10),transparent 30%),
    radial-gradient(circle at 95% 12%,rgba(124,140,255,.12),transparent 30%),
    linear-gradient(180deg,rgba(14,22,37,.88),rgba(7,12,22,.82));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.metrics-page::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(120deg,rgba(255,255,255,.025),transparent 28%,transparent 75%,rgba(126,245,211,.025));
}
.metrics-page>*{position:relative;z-index:1}
.metrics-hero{
  display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:18px
}
.metrics-hero h2{margin:4px 0 6px;font-size:30px;letter-spacing:-.035em}
.metrics-period{
  display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;
  border:1px solid rgba(126,245,211,.14);background:rgba(126,245,211,.06);
  color:var(--accent);font-size:12px;font-weight:800
}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:12px
}
.metric-card{
  padding:16px;border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.025));
}
.metric-card small{display:block;color:var(--muted);font-size:11px;margin-bottom:7px}
.metric-card strong{font-size:25px;letter-spacing:-.035em}
.metric-card .delta{margin-top:5px;font-size:11px;color:var(--accent)}
.metrics-panels{
  display:grid;grid-template-columns:1.2fr .8fr;gap:14px;margin-top:14px
}
.metric-panel{
  padding:18px;border-radius:22px;border:1px solid var(--line);background:rgba(255,255,255,.028)
}
.metric-panel h3{margin:3px 0 14px;font-size:18px}
.week-bars{
  display:grid;grid-template-columns:repeat(7,1fr);gap:10px;align-items:end;height:190px;padding-top:8px
}
.week-col{display:flex;flex-direction:column;align-items:center;gap:8px;height:100%;justify-content:flex-end}
.week-track{
  width:100%;max-width:46px;height:145px;border-radius:15px;overflow:hidden;
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.05);
  display:flex;align-items:flex-end
}
.week-fill{
  width:100%;border-radius:13px 13px 0 0;min-height:4px;
  background:linear-gradient(180deg,var(--accent),var(--accent2));
  box-shadow:0 -8px 25px rgba(126,245,211,.15);
  transition:height .4s ease
}
.week-col small{color:var(--muted);font-size:10px}
.week-col strong{font-size:10px;color:#d9e0ea}
.split-list{display:grid;gap:12px}
.split-item{display:grid;grid-template-columns:86px 1fr 34px;gap:10px;align-items:center}
.split-item span{font-size:12px;color:#dce4ef;font-weight:750}
.split-track{height:10px;border-radius:999px;background:rgba(255,255,255,.05);overflow:hidden}
.split-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.split-item strong{text-align:right;font-size:12px}
.metrics-recent{display:grid;gap:9px;margin-top:14px}
.metric-session{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:12px 14px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.025)
}
.metric-session small{color:var(--muted)}
.metric-empty{padding:18px;text-align:center;color:var(--muted);font-size:12px;border:1px dashed var(--line);border-radius:16px}
.bottom{grid-template-columns:repeat(5,1fr)}
@media(max-width:820px){
  .metrics-grid{grid-template-columns:1fr 1fr}
  .metrics-panels{grid-template-columns:1fr}
}
@media(max-width:520px){
  .metrics-page{padding:18px}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .metrics-hero{align-items:flex-start;flex-direction:column}
  .metrics-hero h2{font-size:26px}
  .week-bars{gap:6px;height:170px}
  .week-track{height:125px}
  .bottom{width:min(97%,720px)}
  .nav span{font-size:9px}
}


/* ===== MEASURES PAGE ===== */
.measures-page{
  margin-top:30px;padding:24px;border-radius:30px;position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 10% 0%,rgba(183,119,255,.10),transparent 30%),
    radial-gradient(circle at 95% 15%,rgba(126,245,211,.08),transparent 30%),
    linear-gradient(180deg,rgba(15,23,39,.90),rgba(7,12,22,.84));
  border:1px solid var(--line);box-shadow:var(--shadow)
}
.measures-page::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(120deg,rgba(255,255,255,.02),transparent 35%,rgba(124,140,255,.018))
}
.measures-page>*{position:relative;z-index:1}
.measures-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px
}
.measures-head h2{font-size:30px;margin:4px 0 5px;letter-spacing:-.035em}
.measure-form{
  display:grid;grid-template-columns:repeat(4,1fr);gap:12px
}
.measure-field{
  padding:13px;border-radius:18px;background:rgba(255,255,255,.03);
  border:1px solid var(--line)
}
.measure-field label{
  display:block;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.10em;
  text-transform:uppercase;margin-bottom:7px
}
.measure-field input{
  width:100%;border:0;outline:none;background:transparent;color:var(--text);
  font-size:18px;font-weight:800
}
.measure-field input::placeholder{color:#526074}
.measure-actions{
  display:flex;justify-content:flex-end;gap:8px;margin-top:12px
}
.measure-summary{
  display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px
}
.measure-card{
  padding:15px;border-radius:18px;border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.025))
}
.measure-card small{display:block;color:var(--muted);margin-bottom:6px}
.measure-card strong{font-size:22px;letter-spacing:-.03em}
.measure-card .measure-delta{margin-top:5px;font-size:11px;color:var(--accent)}
.measures-table-wrap{
  margin-top:16px;border-radius:20px;border:1px solid var(--line);overflow:auto;
  background:rgba(255,255,255,.025)
}
.measures-table{
  width:100%;border-collapse:collapse;min-width:900px
}
.measures-table th,.measures-table td{
  padding:12px 14px;text-align:left;border-bottom:1px solid rgba(255,255,255,.055);
  font-size:12px
}
.measures-table th{
  color:var(--muted);font-size:10px;letter-spacing:.08em;text-transform:uppercase;
  background:rgba(255,255,255,.025)
}
.measures-table td strong{font-size:12px}
.measure-empty{
  padding:22px;text-align:center;color:var(--muted)
}
.measure-delete{
  border:1px solid rgba(255,125,141,.15);background:rgba(255,125,141,.05);
  color:#ff9aa7;border-radius:10px;padding:6px 9px;font-size:11px
}
.bottom{grid-template-columns:repeat(6,1fr)}
@media(max-width:900px){
  .measure-form{grid-template-columns:1fr 1fr}
  .measure-summary{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .measures-page{padding:18px}
  .measures-head{align-items:flex-start;flex-direction:column}
  .measures-head h2{font-size:26px}
  .measure-form{grid-template-columns:1fr 1fr}
  .measure-summary{grid-template-columns:1fr 1fr}
  .bottom{width:min(98%,720px);padding:6px}
  .nav{padding:7px 2px}
  .nav span{font-size:8px}
}


/* ===== PROFILE PHOTO REFINEMENT ===== */
@media (min-width:700px){
  .avatar{width:84px;height:84px}
}
.student-photo{
  background:#0b1220;
}
.student-photo img{
  filter:saturate(1.02) contrast(1.01);
}



/* ===== MOBILE PRODUCTION OPTIMIZATION ===== */
html,body{
  overscroll-behavior-y:none;
  -webkit-text-size-adjust:100%;
}
body{
  padding-top:env(safe-area-inset-top);
  padding-left:env(safe-area-inset-left);
  padding-right:env(safe-area-inset-right);
}
.app{
  padding-bottom:calc(128px + env(safe-area-inset-bottom));
}
button,.tab,.exercise,.nav,.primary,.secondary,.round{
  -webkit-tap-highlight-color:transparent;
  touch-action:manipulation;
}
.icon-btn,.round{
  min-width:44px;min-height:44px
}
.primary,.secondary{
  min-height:46px
}
.bottom{
  bottom:calc(10px + env(safe-area-inset-bottom));
  padding-bottom:max(8px,env(safe-area-inset-bottom));
}
.modal-backdrop{
  padding:
    max(12px,env(safe-area-inset-top))
    max(12px,env(safe-area-inset-right))
    max(12px,env(safe-area-inset-bottom))
    max(12px,env(safe-area-inset-left));
}
.modal{
  max-height:calc(100dvh - 28px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
}
.offline-banner{
  position:fixed;
  top:calc(10px + env(safe-area-inset-top));
  left:50%;
  transform:translateX(-50%);
  z-index:2000;
  padding:8px 13px;
  border-radius:999px;
  background:rgba(255,210,124,.12);
  color:#ffd27c;
  border:1px solid rgba(255,210,124,.22);
  backdrop-filter:blur(14px);
  font-size:11px;
  font-weight:800;
}
@media(max-width:640px){
  .app{padding:10px 10px calc(112px + env(safe-area-inset-bottom))}
  .topbar{top:8px;height:62px;border-radius:20px;padding:10px 12px}
  .brand-title{font-size:14px}
  .eyebrow{font-size:9px}
  .logo{width:38px;height:38px;border-radius:12px}
  .hero{margin-top:12px;padding:18px;border-radius:26px;gap:16px}
  .profile{gap:13px}
  .avatar{width:70px!important;height:70px!important;border-radius:19px}
  .avatar-wrap{border-radius:22px}
  .hero h1{font-size:24px}
  .hero-pills{gap:6px}
  .pill{padding:8px 10px;font-size:10px}
  .stats{gap:8px}
  .stat{padding:13px;border-radius:17px}
  .stat strong{font-size:18px}
  .section{margin-top:22px}
  .section-head h2{font-size:19px}
  .tab{min-height:76px;padding:15px;border-radius:18px}
  .summary{padding:16px;border-radius:20px;align-items:flex-start;flex-direction:column}
  .summary .primary{width:100%}
  .exercise{grid-template-columns:78px 1fr;padding:10px;border-radius:18px}
  .thumb{height:76px;border-radius:14px}
  .exercise h3{font-size:15px}
  .meta{gap:5px}
  .meta span{font-size:10px;padding:5px 7px}
  .actions{grid-column:1/-1;justify-content:flex-end}
  .panel{padding:16px;border-radius:20px}
  .timer-display{font-size:46px}
  .timer-presets{gap:6px}
  .timer-presets button{padding:10px 6px}
  .metrics-page,.measures-page{padding:16px;border-radius:24px}
  .metrics-grid,.measure-summary{gap:8px}
  .metric-card,.measure-card{padding:13px;border-radius:16px}
  .metric-card strong,.measure-card strong{font-size:20px}
  .measure-form{gap:8px}
  .measure-field{padding:11px;border-radius:15px}
  .measure-field input{font-size:16px}
  .bottom{
    width:calc(100% - 16px);
    border-radius:19px;
    padding:6px;
  }
  .nav{padding:8px 1px;min-height:52px}
  .nav svg{width:18px;height:18px}
  .nav span{font-size:8px}
  .modal{border-radius:22px;padding:10px}
  .modal-head{padding:6px 4px 12px}
  .dual-gallery{gap:8px}
  .phase-card,.phase-card img{min-height:210px}
  .phase-label{top:8px;left:8px;padding:6px 8px;font-size:9px}
  .detail-board{gap:7px}
  .detail-tile{padding:10px;border-radius:14px}
  .how-premium{padding:14px;border-radius:16px}
}
@media(max-width:390px){
  .hero h1{font-size:21px}
  .avatar{width:62px!important;height:62px!important}
  .pill:nth-child(n+3){display:none}
  .metrics-grid,.measure-summary{grid-template-columns:1fr 1fr}
  .measure-form{grid-template-columns:1fr}
  .detail-board{grid-template-columns:1fr}
  .phase-card,.phase-card img{min-height:190px}
}


/* ===== INSTALL EXPERIENCE ===== */
.install-help-backdrop[hidden]{display:none!important}
.install-help-backdrop{
  position:fixed;inset:0;z-index:3000;display:grid;place-items:center;
  padding:max(18px,env(safe-area-inset-top)) 18px max(18px,env(safe-area-inset-bottom));
  background:rgba(2,5,10,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)
}
.install-help-card{
  position:relative;width:min(92vw,430px);padding:24px;border-radius:28px;
  background:linear-gradient(180deg,rgba(17,27,44,.98),rgba(8,13,23,.98));
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 35px 120px rgba(0,0,0,.65)
}
.install-help-card h2{margin:7px 0 16px;font-size:24px;letter-spacing:-.03em}
.install-help-card p{color:#cfd7e3;line-height:1.55;margin:10px 0}
.install-help-card ol{margin:12px 0 0;padding-left:20px;color:#d8e0ea}
.install-help-card li{margin:10px 0;line-height:1.45}
.install-help-close{
  position:absolute;right:14px;top:14px;width:42px;height:42px;border-radius:14px;
  border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.05);color:white;
  font-size:24px;line-height:1
}
.install-help-icon{
  width:48px;height:48px;border-radius:16px;display:grid;place-items:center;margin-bottom:14px;
  color:var(--accent);background:rgba(126,245,211,.08);border:1px solid rgba(126,245,211,.15)
}
.install-help-icon svg{width:22px;height:22px}
.install-ok{
  display:block;width:100%;margin-top:18px;padding:13px 16px;border:0;border-radius:15px;
  color:#06100d;background:linear-gradient(135deg,var(--accent),#b8ffe9);font-weight:850
}